如何更改 ListPreference 对话框的外观

问题描述

我想更改 ListPreference 对话框中出现的 RadioButton 以换取复选标记或其他内容，或者没有，有没有简单的方法可以做到这一点?

I would like to change the RadioButton that appears on ListPreference dialog for a check mark or something different, or none, is there a simple way to do this?

推荐答案

如果你想改变整个对话框，也许可以使用像这样的替换对话框库 material-dialogs 包，你可以使用这个替换 ListPreference:

If you want to change the whole dialog, maybe to use a replacement dialog library like this material-dialogs package, you can use this replacement ListPreference:

import com.afollestad.materialdialogs.MaterialDialog;

public class MaterialListPreference extends ListPreference {
  private MaterialDialog.Builder mBuilder;
  private Context context;

  public MaterialListPreference(Context context) {
    super(context);
    this.context = context;
  }

  public MaterialListPreference(Context context, AttributeSet attrs) {
    super(context, attrs);
    this.context = context;
  }

  @Override
  protected void showDialog(Bundle state) {
    mBuilder = new MaterialDialog.Builder(context);
    mBuilder.title(getTitle());
    mBuilder.icon(getDialogIcon());
    mBuilder.positiveText(null);
    mBuilder.negativeText(getNegativeButtonText());
    mBuilder.items(getEntries());
    mBuilder.itemsCallback(new MaterialDialog.ListCallback() {
      @Override
      public void onSelection(MaterialDialog dialog, View itemView, int which, CharSequence text) {
        onClick(null, DialogInterface.BUTTON_POSITIVE);
        dialog.dismiss();

        if (which >= 0 && getEntryValues() != null) {
          String value = getEntryValues()[which].toString();
          if (callChangeListener(value))
            setValue(value);
        }
      }
    });

    final View contentView = onCreateDialogView();
    if (contentView != null) {
      onBindDialogView(contentView);
      mBuilder.customView(contentView);
    }
    else
      mBuilder.content(getDialogMessage());

    mBuilder.show();
  }

}

它做的不多，只是覆盖对话框显示和选择回调部分的最低限度.YMMV 如果您选择不同的对话框库但不会太多，它们往往或多或少是 AlertDialog 的直接替代品.

It doesn't do much, just the bare minimum to override the dialog display and selection callback parts. YMMV very slightly if you opt for a different dialog library but not too much, they tend to be more or less direct replacements for AlertDialog.

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